Who is F5?

Diameter Interfaces

Diameter interfaces provide connection among Diameter nodes to enable essential service provider network functions such as authentication, online and offline billing, and policy and charging.

Seamless connectivity among the many different network components in 4G LTE environments is essential to communications service providers’ (CSPs) ability to ensure service availability. It’s also essential in creating an interconnected environment that combines legacy and LTE elements. The Traffix Signaling Delivery Controller (SDC) provides support for more than 50 Diameter interfaces for rapid service enablement.

Using the SDC, CSPs can add support for new Diameter interfaces by simply uploading XML-based Diameter data dictionaries to the SDC for fast interconnection with multiple Diameter nodes.

The SDC also provides seamless and transparent support for any vendor-specific AVPs (attribute-value pairs) and can transparently handle multiple different versions of the same AVP with different encoding. If the solution needs to modify these AVPs, they can be added into the dictionary file with different names, to allow a user to access and modify these AVPs using their real names.

The SDC solution is compliant with 3GPP releases 7, 8, 9, 10, and 11. The following tables shows the complete list of interfaces the SDC supports.

Interface

Network location

Supported version

Diameter Base Protocol

IETF RFC 3588, 4960, 793

Diameter Commands for 3GPP

IETF RFC 3589

Diameter Credit Control App

IETF RFC 4006

NASREQ Support for Network Access Server

IETF RFC 4005

EAP Support for Extensible Authentication Protocol

IETF RFC 4072

Mobile IPv4 Support for Diameter Mobile IPv4

IETF RFC 4004

Diameter Mobile IPv6

IETF RFC 5447

Diameter SIP Application

IETF RFC 4740

Sh interface

Between AS and HSS, Subscription and Authentication Data – IMS

3GPP TS 29.328 & TS 29.329

Sd interface

Between PCRF and TDF (Traffic Detection Function)

3GPP TS 29.212

Sy interface

Between PCRF and OCS/OFCS, Policy and Charging Control over Sy reference point

3GPP TS 29.219

Dh interface

Between AS and SLF

3GPP TS 29.328 & TS 29.329

Rf interface

Between AS and OFCS, postpaid charging

RFC 4006, 3GPP TS 32.225 & TS 32.299

Ro interface

Between AS and OCS, online charging in IMS & LTE

RFC 4006, 3GPP TS 32.225 & TS 32.299

Re interface

Between OCF and Rating function

3GPP TS 32.296

Cx interface

Between CSCF and HSS, Subscription and Authentication Data – IMS

3GPP TS 29.228 & TS29.229

Dx interface

Between CSCF and SLF

3GPP TS 29.228 & TS29.229

Sp interface

Between PCRF and SPR

3GPP TS 23.203, TS 29.328 & TS 29.329

Rx interface

Between AF and the PCRF, QoS and Policy

3GPP TS 23.203 & TS 29.214

Gx interface

Between PCEF and the PCRF, QoS and Policy

3GPP TS 29.212 & TS 23.203

Gy interface

Between OCS and PCEF, online charging

3GPP TS 32.299, TS 32.251 & RFC 4006

Gz interface

Between PCEF and OFCS

3GPP TS 32.240, TS 32.295

Gq interface

Between AF and PDF

3GPP TS 29.209

Gi interface

Between Packet Domain and an external packet data network

3GPP TS 29.061

SGi interface

Between the EPC based PLMN and the packet data network

3GPP TS 29.061

Zh interface

Between BSF and HSS

3GPP TS 29.109 & TS 33.220

Zh interface

Between BSF and HSS (used between operators)

3GPP TS 29.109 & TS 33.220

Dz interface

Between BSF and SLF

3GPP TS 29.109 & TS 33.220

Zn interface

Between BSF and NAF

3GPP TS 29.109 & TS 33.220

Zn' interface

Between BSF and Zn Proxy

3GPP TS 29.109 & TS 33.220

Dw interface

Between the 3GPP AAA Server and an SLF

3GPP TS 29.234

Wa interface

Between the WLAN AN and the 3GPP AAA Proxy

3GPP TS 29.234

Wd interface

Between the 3GPP AAA Proxy and 3GPP AAA Server

3GPP TS 29.234

Wx interface

Between the 3GPP AAA Server and the HSS

3GPP TS 29.234

Wm interface

Between the 3GPP AAA Server and the PDG

3GPP TS 29.234

Wg interface

Between the 3GPP AAA Server/Proxy and the WAG

3GPP TS 29.234

Pr interface

Between the 3GPP AAA Server and the PNA

3GPP TS 29.234

Wm interface

Between the 3GPP AAA Server and the PDG

3GPP TS 29.234

Gmb interface

Between GGSN and BM-SC

3GPP TS 29.061

Mz interface

Mz is the roaming variant of the Gmb reference point with the same functionality

3GPP TS 29.061

Bi interface

CCF to BS

3GPP TS TS 32.225

MM10 interface

Multimedia Messaging Service (MMS)

OMA MM10 interface

Ty interface

Between AGW and PCRF

3GPP2 TSG-X X.S0013-014

Tx interface

Between AF and PCRF

3GPP2 TSG-X X.S0013-013

S6a interface

Between MME and HSS, Subscription and Authentication Data

3GPP TS 29.272

S6b interface

Between the 3GPP AAA Server/Proxy and the PDN GW

3GPP TS 23402

S6d interface

Between SGSN and HSS, Subscription and Authentication Data

3GPP TS 29.272

S7c interface

Transfer of (QoS) policy information from PCRF to the S-GW.

3GPP TS 32820, TS 23402

S9 interface

Between PCRF in the HPLMN (H PCRF) and a PCRF in the VPLMN (V PCRF)

3GPP TS 23.203 & TS 29.215

S13 and S13' interface

Between EIR and MME/SGSN

3GPP TS 29.272

Gxa interface

PCRF and the BBERF

3GPP TS 23.203

Gxb interface

Between ePDG and vPCRF

3GPP TS 23.203

Gxc interface

BPCRF and the BBERF

3GPP TS 23.203

SWa interface

Between an un-trusted non-3GPP IP access and the 3GPP AAA Server/Proxy